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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Spent brewer's yeast as a source of high added value molecules: a systematic review on its characteristics, processing and potential applications

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Author(s):
Marson, Gabriela Vollet [1, 2] ; de Castro, Ruann Janser Soares [3] ; Belleville, Marie-Pierre [1] ; Hubinger, Miriam Dupas [2]
Total Authors: 4
Affiliation:
[1] Univ Montpellier, Inst Europeen Membranes, CNRS, ENSCM, CC 047, 2 Pl Eugene Bataillon, F-34095 Montpellier - France
[2] Univ Estadual Campinas, Dept Food Engn, Lab Proc Engn, Sch Food Engn, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil
[3] Univ Estadual Campinas, Dept Food Sci, Sch Food Engn, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil
Total Affiliations: 3
Document type: Review article
Source: WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY; v. 36, n. 7 JUN 24 2020.
Web of Science Citations: 0
Abstract

Development of new strategies to add-value to agro-industrial by-products are of environmental and economical importance. Innovative and low-cost sources of protein and bioactive peptides have been explored worldwide. Spent brewer's yeast (SBY) is the second most relevant by-product from the brewing industry, and despite its nutritional (about 50% protein, dry weight) and technological potential, it is still underused or needs to be disposed of. SBY cells need to be disrupted to release intracellular and cell wall proteins. This procedure has been performed using autolysis, glass bead milling, enzymatic hydrolysis and ultrasound processing. Enzymatic treatment is usually performed without prior purification and is a challenging process, which involves multiple factors, but has been successfully used as a strategy to add value to agro-industrial by-products. Scope and approach: in this review, we particularly focused on enzymatic hydrolysis as a strategy to promote SBY valorisation, illustrating the state-of-the-art processes used to produce protein extracts from this material as well as exploring fundamental concepts related to the particularities of yeast cell disruption and protein hydrolysis. Furthermore, innovative applications of value-added yeast by-products in food, biotechnological and pharmaceutical industries are presented and discussed. Key findings and conclusions: the discovery of valuable compounds found in spent yeasts as well as the development of new processing methodologies have been widening the possibilities of reuse and transformation of SBY as an ingredient and innovative matrix. Once released, yeast proteins and peptides may be applied as an innovative non-animal protein source or a functional and bioactive ingredient. (AU)

FAPESP's process: 18/04067-6 - Membrane concentration and fractionation of brewer spent yeast protein hydrolysate
Grantee:Gabriela Vollet Marson
Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)
FAPESP's process: 16/18465-8 - Membrane concentration and fracionation of brewer spent yeast protein hydrolyzate
Grantee:Gabriela Vollet Marson
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)